| abstract |
A thiophene compound having sulfonyl groups which is represented by the formula [1]. It has high heat resistance and high unsusceptibility to oxidation and can improve solubility and dispersibility in various solvents.n n[In the formula, R 1 and R 2 each independently represents hydrogen, halogeno, cyano, etc.; and R 3 and R 3' each independently represents C 1-20 alkyl, C 1-20 haloalkyl, phenyl optionally substituted by W, thienyl optionally substituted by W, etc. (W represents chlorine, etc.).] |